Home / 85,520.13-118,021.42-47,794.38

Finding the Fourth Proportional to 85,520.13, 118,021.42 and 47,794.38

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Solution

The fourth proportional to 85,520.13, 118,021.42 and 47,794.38 is: 65,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,520.13 : 118,021.42 = 47,794.38 : x
  2. Step 2: Convert to fraction form
    85,520.13/118,021.42 = 47,794.38/x
  3. Step 3: Cross multiply
    85,520.13x = 118,021.42 × 47,794.38
  4. Step 4: Simplify right side
    85,520.13x = 5,640,760,595.62
  5. Step 5: Solve for x
    x = 5,640,760,595.62/85,520.13
  6. Step 6: Final answer
    x = 65,958.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.